Development and characterisation of hybrid polysaccharide membranes for dehydration processes

Meireles, Inês T.; Huertas, Rosa; Torres, Cristiana A.V.; Coelhoso, Isabel M.; Crespo, João G.

doi:10.1016/j.carbpol.2018.03.010

Cited by 10 publications

(5 citation statements)

References 39 publications

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“…Pervaporation is a membrane separation process with unique and adequate features to remove volatile compounds present in liquid mixtures at trace levels [223]. Pervaporation has been used by Portuguese researchers for the dehydration of organic solvents (such as ethanol [224][225][226][227], isopropanol [50] or n-butanol [228]), aroma recovery [49,87,[229][230][231][232][233][234], and process intensification of ethyl lactate [235] or butyl acrylate [213,236].…”

Section: Membranes For Pervaporationmentioning

confidence: 99%

“…Meireles et al [227] also developed hybrid polysaccharide (FucoPol) membranes by incorporating a SiO 2 network. Although the hybrid FucoPol membranes showed high water selectivity values (similar to PERVAP 4101 ® commercial membrane), their long-term operation was compromised by an irreversible swelling in the presence of water.…”

Section: Membranes For Pervaporationmentioning

confidence: 99%

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Overview of Membrane Science and Technology in Portugal

et al. 2022

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Membrane research in Portugal is aligned with global concerns and expectations for sustainable social development, thus progressively focusing on the use of natural resources and renewable energy. This review begins by addressing the pioneer work on membrane science and technology in Portugal by the research groups of Instituto Superior Técnico—Universidade de Lisboa (IST), NOVA School of Science and Technology—Universidade Nova de Lisboa (FCT NOVA) and Faculdade de Engenharia—Universidade do Porto (FEUP) aiming to provide an historical perspective on the topic. Then, an overview of the trends and challenges in membrane processes and materials, mostly in the last five years, involving Portuguese researchers, is presented as a contribution to a more sustainable water–energy–material–food nexus.

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Section: Membranes For Pervaporationmentioning

confidence: 99%

Section: Membranes For Pervaporationmentioning

confidence: 99%

Overview of Membrane Science and Technology in Portugal

et al. 2022

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“…Some polysaccharides recovered from microbial fermentation broths have also been explored in the field [80,81]. Meireles et al [81] evaluated the performance in the dehydration process of exopolysaccharide, FucoPol, produced by Enterobacter A47. The polysaccharide-based membranes displayed comparable selective properties (β = 566, in ethanol dehydration) compared to conventional synthetic polymers (like PVA).…”

Section: Biopolymers: the Promising Materials In Membrane Preparatmentioning

confidence: 99%

New Trends in Biopolymer-Based Membranes for Pervaporation

Castro-Muñoz

González‐Valdez

2019

Molecules

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Biopolymers are currently the most convenient alternative for replacing chemically synthetized polymers in membrane preparation. To date, several biopolymers have been proposed for such purpose, including the ones derived from animal (e.g., polybutylene succinate, polylactic acid, polyhydroxyalcanoates), vegetable sources (e.g., starch, cellulose-based polymers, alginate, polyisoprene), bacterial fermentation products (e.g., collagen, chitin, chitosan) and specific production processes (e.g., sericin). Particularly, these biopolymer-based membranes have been implemented into pervaporation (PV) technology, which assists in the selective separation of azeotropic water-organic, organic-water, organic-organic mixtures, and specific separations of chemical reactions. Thereby, the aim of the present review is to present the current state-of-the-art regarding the different concepts on preparing membranes for PV. Particular attention is paid to the most relevant insights in the field, highlighting the followed strategies by authors for such successful approaches. Finally, by reviewing the ongoing development works, the concluding remarks and future trends are addressed.

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“…There are plenty of studies of silane hybrids with CH, − AA, − carrageenan, , as well as with cellulose . The studies were performed with a variety of silanes, such as (3-glycidoxypropyl)trimethoxy silane (GPTMS) which carries an epoxy ring, ,, and (3-isocyanatopropyl)triethoxy silane (IPTES) that has an isocyanate group . The obtained materials exhibit versatile functions and can be used for encapsulation of proteins, as tissue engineering materials, , as drug-delivery vehicles, and as antimicrobial materials. , In this work, two different silanes were chosen as multilayer cross-linking agents: one was triethoxymethyl silane (TEMS) (Figure e) and the other one was the zwitterionic, newly synthesized silane, 3-(1-(3-(triethoxysilyl)propyl)-4,5-dihydro-1 H -imidazol-3-ium-3-yl)propane-1-sulfonate (ISTES) (Figure f) bearing imidazole and sulfonate groups.…”

Section: Introductionmentioning

confidence: 99%

“…There are plenty of studies of silane hybrids with CH, 41−44 AA, 45−47 carrageenan, 48,49 as well as with cellulose. 50 The studies were performed with a variety of silanes, such as (3glycidoxypropyl)trimethoxy silane (GPTMS) which carries an epoxy ring, 42,51,52 and (3-isocyanatopropyl)triethoxy silane (IPTES) that has an isocyanate group. 53 The obtained materials exhibit versatile functions and can be used for encapsulation of proteins, 45 as tissue engineering materials, 42,50 as drug-delivery vehicles, 54 and as antimicrobial materials.…”

Section: Introductionmentioning

confidence: 99%

Layer-by-Layer Deposited Hybrid Polymer Coatings Based on Polysaccharides and Zwitterionic Silanes with Marine Antifouling Properties

Wang

Gnutt

et al. 2021

ACS Appl. Bio Mater.

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Polyelectrolyte multilayer (PEM) assembly is a versatile tool to construct low-fouling coatings. For application in the marine environment, their structure needs to be stabilized by covalent linkage. Here, we introduce an approach for spin coating of silane-based sol–gel chemistries using layer-by-layer assembly of polysaccharide-based hybrid polymer coatings (LBLHPs). The silane sol–gel chemistry allows the films to be cross-linked under water-based and mild reaction conditions. Two different silanes were used for this purpose, a conventional triethoxymethyl silane and a de novo synthesized zwitterionic silane. The polysaccharide–silane hybrid polymer coatings were thoroughly characterized with spectroscopic ellipsometry, water contact angle (WCA) goniometry, attenuated total reflection–Fourier transform infrared spectroscopy, and atomic force microscopy. The coatings showed good stability in seawater, smooth surfaces, a high degree of hydration, and WCAs below or close to the Berg limit. LBLHPs showed low-fouling properties in biological assays against nonspecific protein adsorption, attachment of the diatom Navicula perminuta, and settlement of zoospores of the macroalga Ulva linza.

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Development and characterisation of hybrid polysaccharide membranes for dehydration processes

Cited by 10 publications

References 39 publications

Overview of Membrane Science and Technology in Portugal

Overview of Membrane Science and Technology in Portugal

New Trends in Biopolymer-Based Membranes for Pervaporation

Layer-by-Layer Deposited Hybrid Polymer Coatings Based on Polysaccharides and Zwitterionic Silanes with Marine Antifouling Properties

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